WD40 is pretty great stuff; I too have been using it for years.
It will gum up an action if used improperly; this is mostly in the way we use it. For example: Using it as a preservative and applying new WD40 over old layers of WD40 repeatedly will create grease that will be so thick that parts stop functioning especially in cold weather. The great thing about WD40 is that in its spray can formula it can be used to clean away the old buildup. The other thing is that it does attract powder residue more than many oils especially true of 22 cal guns that tend to be shot hundreds of times each session. Again under pressure WD40 acts as a mild solvent and will clean most of this away.
One thing everyone who uses WD40 should know is that this is a penetrant, and if left in your bore or on the face of your breechblock can cause your bullets to go dead or cause a partial detonation and barrel obstruction from a lodged bullet. (this doesnâ??t happen quickly) for example a gun that sits in the night stand for months might fail at the very moment you need it most.
WD40 is a great multipurpose product but just like every other multipurpose product has to be used properly.
Story Time:
A good friend of mine asked if he could bring his revolver in to be repaired. I told him very clearly that loaded guns were not allowed in the shop and to make sure this was the case before bringing it in for repair.
On the day he entered the shop, I greeted him and he lifted his gun from its case, I again asked, is it unloaded? To my shock and unbelief he said donâ??t worry its unloaded and pointed it at me and pulled the trigger three times then said â??seeâ?. I said (sh--!) donâ??t do that, he laughed and again saying its not loaded pointed it at the concrete floor and pulled the trigger several more times. Some rather harsh words followed, not proper for this forum.
Upon inspecting the gun I found it fully loaded, the firing pin was stuck solid because he had used WD40 improperly for several years. Always applying it after shooting to prevent rust but never using it as a cleaner/solvent---trust me WD40 can gum up your action!
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